Khan Mursala
Department of Mathematics, COMSATS Institute of Information Technology, Abbottabad, 22060 Pakistan ; Carl Duisberg Center, Jägerstraße 64, 10117 Mitte-Berlin, Germany.
Springerplus. 2016 Jan 27;5:86. doi: 10.1186/s40064-016-1717-4. eCollection 2016.
In this article, we have proposed a ratio chain-type exponential estimator for finite population mean of the study variable under double sampling scheme using auxiliary variables. The large sample properties of the suggested strategy are derived up to first order, of approximation, and its competence conditions are carried out under which the suggested estimator is performed better than the other existing estimators discussed in the literature. An empirical study shows that the suggested strategy is more efficient than the other relevant competing estimators under two phase sampling scheme.
在本文中，我们提出了一种比率链型指数估计量，用于在使用辅助变量的双重抽样方案下估计研究变量的有限总体均值。推导了所提策略的大样本性质至一阶近似，并给出了其有效性条件，在此条件下所提估计量比文献中讨论的其他现有估计量表现更优。一项实证研究表明，在两阶段抽样方案下，所提策略比其他相关竞争估计量更有效。
